#include <string.h>

size_t my_hash_value(const char *str_key);

size_t strlcpy(char * dst, const char * src, size_t siz);

int my_strcmp(const char *s1, const char *s2);

int convert_time(char* time);

long long get_time_stamp();

int get_us_time_diff(long long start, long long end);